Structural and Thermal Characterization of Ti plus O Ion Implanted UltraHigh Molecular Weight Polyethylene (UHMWPE)

20th International Conference on Application of Accelerators in Research and Industry -- AUG 10-15, 2008 -- Ft Worth, TXWOS: 000265828500120In this work, Metal-Gas Hybrid Ion Implantation technique was used as a tool for the surface modification of Ultra High Molecular Weight Polyethylene (UHMWPE). Samples were Ti + O ion implanted by using Metal-Vapour Vacuum Arc (MEVVA) ion implanter to a fluence of 5x10(16) ion/cm(2) for each species and extraction voltage of 30 kV. Untreated and surface treated samples were investigated by Rutherford Back Scattering (RBS) Spectrometry, Attenuated Total Reflectance - Fourier Transform Infrared (ATR-FTIR) Spectroscopy, Thermo Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). Results indicate that Ti + O ion implantation can be applied on UHMWPE surfaces successfully. ATR-FTIR spectra indicate that the C-H concentration on the surface decreased after Ti + O implantation. Thermal characterization with TGA and DSC shows that polymeric decomposition temperature is shifted after ion implantation.Univ N Texas, Sandia Natl LabCenter for Irradiation of Materials; Alabama AM University; Hipokrat Co.Authors acknowledge partial support from the Center for Irradiation of Materials, Alabama A&M University and Hipokrat Co